Stadium: C Round: 27 Ground: Clay
| ITF Poland F7 | 2018/08/16 10:45 | Jeremy Jahn v Eduardo Dischinger | 6-4,6-3 |
| ITF Poland F7 | 2018/08/15 12:00 | Jeremy Jahn v Vitalii Shcherba | 6-1,6-0 |
| Challenger Scheveningen | 2018/07/16 16:30 | Tobias Kamke v Jeremy Jahn | 6-4,3-6,7-6 |
| Challenger Scheveningen Qual | 2018/07/16 11:30 | Jeremy Jahn v Kimmer Coppejans | 6-7,5-7 |
| Challenger Scheveningen Qual | 2018/07/15 11:55 | Jeremy Jahn v Niels Lootsma | 7-6,4-6,7-5 |
| Challenger Scheveningen Qual | 2018/07/14 15:15 | Jeremy Jahn v Dan Added | 6-1,6-2 |
| Challenger Poznan | 2018/06/07 16:45 | Alexey Vatutin v Jeremy Jahn | 7-6,4-6,6-3 |
| Challenger Poznan | 2018/06/06 14:00 | Jeremy Jahn v Kamil Majchrzak | 6-3,2-6,6-0 |
| ITF Poland F7 | 2018/08/16 11:10 | Vladyslav Orlov v Christian Lindell | 4-6,2-6 |
| ITF Poland F7 | 2018/08/15 12:00 | Maciej Rajski v Christian Lindell | 6-7,6-7 |
| ITF Italy F20 | 2018/07/27 14:00 | Genaro Alberto Olivieri v Christian Lindell | 6-7,6-1,6-0 |
| ITF Italy F20 | 2018/07/25 09:30 | Giovanni Fonio v Christian Lindell | 2-6,2-6 |
| ITF Italy F20 | 2018/07/24 09:50 | Alessandro Ingarao v Christian Lindell | 2-6,1-6 |
| Challenger Marburg Qual | 2018/07/01 13:00 | Corentin Moutet v Christian Lindell | 6-2,6-2 |
| Challenger Marburg Qual | 2018/06/30 17:30 | Christian Lindell v George Von Massow | 7-6,7-5 |
| Challenger Milan Qual | 2018/06/24 08:00 | Christian Lindell v Cristian Rodriguez | 6-4,5-7,3-6 |